index :: flt

flt.biquad~

second order IIR filter.

available since version: 0.1

---

information

Digital biquad filter is a second-order recursive linear filter, containing two poles and two zeros. transfer function: H(z)=(b0 + b1z⁻¹ + b2z⁻²)/(1 + a1z⁻¹ + a2z⁻²)

methods:

• reset reset filter state
  

properties:

• @active Get/set on/off dsp processing
  type: bool
  default: 1
  

inlets:

• input signal
  type: audio
• b0
  type: audio
• b1
  type: audio
• b2
  type: audio
• a1
  type: audio
• a2
  type: audio

outlets:

• filtered signal
  type: audio

keywords:

filter biquad

See also: [flt.c_bpf~] [flt.c_hpf~]

Authors: Alex Nadzharov, Serge Poltavsky

License: GPL3 or later